Harvard Health Letter
Protect your skin from the sun
When going outside for an extended period, one should use a water-resistant, broad-spectrum sunscreen with an SPF of at least 30. An SPF of 15 is right for shorter times outside.
When going outside for an extended period, one should use a water-resistant, broad-spectrum sunscreen with an SPF of at least 30. An SPF of 15 is right for shorter times outside.
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